free web tools for diagrams - AI tools

EdrawMax is a versatile diagramming tool that allows users to create over 210 types of diagrams, including flowcharts, mind maps, org charts, and floor plans, with ease and style.

• Paid

Tidecharts is a web-based Mermaid live diagram editor that enables users to create flowcharts, sequence diagrams, and class diagrams using text markup, with all processing done locally in the browser for enhanced privacy.

• Free

Sankey Flow Show is a modern web application for creating Sankey diagrams and various flow diagrams directly in your browser, enabling users to visualize quantities through connection line widths and streamline diagram creation.

• Freemium

FlowChartAI is an AI-powered flowchart generator that instantly converts text descriptions and images into professional diagrams, including flowcharts, mind maps, UML diagrams, and organizational charts without requiring design skills.

• Free Trial
• From 5$

Diagram-Generator is an AI-powered tool that transforms text prompts into professional diagrams instantly, supporting 16+ diagram types including flowcharts, ER diagrams, and mind maps with no design skills required.

• Freemium
• From 9$

Flowdia Diagrams is a touch-optimized diagramming software that enables users to create professional flowcharts, BPMN diagrams, mind maps, UML diagrams, and network diagrams with drag-and-drop functionality.

• Free Trial

Zen Flowchart is an intuitive online tool for creating flowcharts, mind maps, and diagrams with a minimal interface, real-time collaboration, and easy drag-and-drop functionality.

• Freemium

Lovely Charts helps users create various types of professional diagrams including flowcharts, sitemaps, business processes, organization charts, and wireframes for website integration.

• Other

ToDiagram is a web-based tool that transforms structured data formats like JSON, CSV, YAML, and XML into interactive diagrams for easier analysis and editing.

• Freemium
• From 7$

ZenUML is a multi-platform diagram-as-code tool focused on rendering interactive sequence diagrams and flowcharts quickly and securely in your browser or favorite development environments.

• Freemium

Vexlio is an AI-powered diagramming tool that enables users to create precise, interactive diagrams with auto-snap alignment, LaTeX integration, and smart tools for business, technical, and academic applications.

• Freemium
• From 6$

Isoflow is an AI-powered diagramming tool that helps users model software systems, business processes, IT networks, and more with powerful visualizations and custom AI-generated icons.

• Freemium
• From 13$

AI Diagram Maker transforms text descriptions into professional software architecture diagrams in seconds, offering a conversational interface that replaces traditional time-consuming diagramming tools.

• Freemium
• From 5$

PlantUML enables users to quickly create and export a wide range of UML and non-UML diagrams using a simple textual language, supporting diverse input and output formats for seamless integration into any workflow.

• Free

Mind42 is a free, browser-based mind mapping tool designed for fast, structured information organization and easy collaboration.

• Free

Docugram converts documents into interactive flowcharts. It offers a user-friendly interface with automatic layout algorithms and customizable design elements, enhancing project management and strategic planning.

• Freemium
• From 8$

Diagramming AI is an advanced AI-powered platform that enables users to create, edit, and manage various types of diagrams including UML, workflows, and charts through intuitive AI commands and chat interactions.

• Freemium
• From 3$

Diagrams is a Mac-native application for creating structured diagrams with a clean interface, customizable palettes, and automation through Shortcuts integration, available via one-time purchase or subscription.

• Other
• From 9$

CloudSkew is an online diagramming tool that enables users to create architecture diagrams, network diagrams, and flowcharts with built-in icons for major cloud platforms, featuring autosave to cloud and a built-in document editor.

• Freemium
• From 3$

Line.do is an online platform for creating infographics and reports, offering tools for visual communication and diagram generation.

• Other

Draft1.ai is an AI-powered tool that automatically generates various types of diagrams including software architecture, network, cloud, and ER diagrams from text input, helping users create visually appealing technical documentation efficiently.

• Paid
• From 12$

SystemDraw is an AI-powered platform that simplifies software architecture diagram creation with drag-and-drop nodes, traffic estimation tools, and no login required.

• Freemium

dAIgram is an AI-powered tool that converts flowchart images, sketches, and screenshots into editable digital diagrams using OCR technology.

• Freemium

Software Ideas Modeler is a comprehensive CASE and diagramming tool that supports UML, SysML, ERD, BPMN, and many other technical diagram standards for software design and analysis.

• Paid

Fluig AI is an intelligent diagramming tool that transforms documents, images, and ideas into professional diagrams instantly, with the ability to convert between different diagram formats in one click.

• Freemium
• From 22$

Image to Draw.io is an AI-powered service that transforms static images into fully editable Draw.io diagrams using advanced computer vision and OCR technology. The tool offers a simple pay-per-conversion model with free trials available.

• Freemium
• From 8$